Base64 Decode Online Tool

This online base64 decode tool helps you to convert a base64 format String into a raw string.

Paste your Input String or drag text file in the first textbox, then press "Base64 Decode" button, and the result will be displayed in the second textbox.

The WordPress REST API is enabled by default on all WordPress sites. APIs can be accessed by programs outside the site itself (such as mobile apps and RSS clients), the REST API endpoint is /wp-json/wp/v2/.

WordPress REST API can be authenticated by adding header to the http request. The auth token is based on base64:

auth_token = base64.standard_b64encode(user + ':' + password)
headers = {'Authorization': 'Basic ' + auth_token}

But wait a minute, Base64 is not an encryption method, anyone can decode a Base64 string. Does that mean the admin password is transmitted on the open Internet without encryption? so anyone can hack into the WordPress REST API? It's scary just thinking about it.

Luckily (maybe not), most website nowadays support https, which encrypt all the http request and response. And for those site does not support https, Base64 authentication method may never been used, it's totally up to the website owner.

Generally speaking, It's a bad practice to use Base64 as the authentication method, so stay away from it as far as possible!!!

Absolutely NOT, this Base64 Decode doing all the formatting work on the client side, all logic are implemented by Javascript. There are 2 major advantages: 1.Your data never transmitted in the Open Internet, so you know it's secure; 2.It's much faster than doing all the work in the server side, because there is no Internet Delay.

RFC 3548: https://tools.ietf.org/html/rfc3548.html

Python Implementation of Base64: https://docs.python.org/2/library/base64.html

Java Implementation of Base64: https://docs.oracle.com/javase/8/docs/api/java/util/Base64.html

import base64

def base64_decoder(str):
    return base64.b64decode(str.encode())
    

import java.util.Base64;

public String decode(String str)  {
    byte[] decodedBytes = Base64.getDecoder().decode(str.getBytes());
    String text = new String(decodedBytes);
    return text;
}